Cathy Jamison
| Jamison, circa 1967 | |
| Personal information | |
|---|---|
| Nickname | "Cathy" | 
| National team | United States | 
| Born | March 26, 1950 Portland, Oregon | 
| Height | 5 ft 7 in (1.70 m) | 
| Weight | 134 lb (61 kg) | 
| Spouse | Paul Imwalle | 
| Children | 3 | 
| Sport | |
| Sport | Swimming | 
| Strokes | Breaststroke | 
| Club | Multinomah Athletic Club Santa Clara Swim Club | 
| Coach | Olive McKean (MAC) George Haines (Santa Clara) | 
Catherine Jamison (born March 26, 1950) also known by her married name Jamison-Imwalle is an American former competition swimmer who swam for Portland's Multinomah Athletic Club and participated in the 1968 Mexico City Olympics for the United States, finishing 5th in the 200-meter breaststroke.